http://www.ourladyswarriors.org/teach/ordisace2.htm CDF's Reply to a Doubt, approved by Pope John Paul II, in which the Congregation affirms that the doctrine of Ordinatio sacerdotalis has been set forth infallibly
http://www.ourladyswarriors.org/teach/ordisace3.htm Letter of the Prefect of the Congregation for the Doctrine of the Faith, Cardinal Joseph Ratzinger, on the CDF's Reply affirming the infallible character of the teaching contained in the Apostolic Letter Ordinatio sacerdotalis
